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-.\" Copyright (c) 1991, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"	@(#)tcsetpgrp.3	8.1 (Berkeley) 6/4/93
-.\"
-.Dd June 4, 1993
-.Dt TCSETPGRP 3
-.Os
-.Sh NAME
-.Nm tcsetpgrp
-.Nd set foreground process group ID
-.Sh SYNOPSIS
-.Fd #include <sys/types.h>
-.Fd #include <unistd.h>
-.Ft int
-.Fn tcsetpgrp "int fd" "pid_t pgrp_id"
-.Sh DESCRIPTION
-If the process has a controlling terminal, the
-.Nm tcsetpgrp
-function sets the foreground process group ID associated with the
-terminal device to
-.Fa pgrp_id .
-The terminal device associated with
-.Fa fd
-must be the controlling terminal of the calling process and the
-controlling terminal must be currently associated with the session
-of the calling process.
-The value of
-.Fa pgrp_id
-must be the same as the process group ID of a process in the same
-session as the calling process.
-.Pp
-Upon successful completion,
-.Nm tcsetpgrp
-returns a value of zero.
-.Sh ERRORS
-If an error occurs,
-.Nm tcgetpgrp
-returns -1 and the global variable
-.Va errno
-is set to indicate the error, as follows:
-.Bl -tag -width Er
-.It Bq Er EBADF
-The
-.Fa fd
-argument is not a valid file descriptor.
-.It Bq Er EINVAL
-An invalid value of
-.Fa pgrp_id
-was specified.
-.It Bq Er ENOTTY
-The calling process does not have a controlling terminal, or the file
-represented by
-.Fa fd
-is not the controlling terminal, or the controlling terminal is no
-longer associated with the session of the calling process.
-.It Bq Er EPERM
-The
-.Fa pgrp_id
-argument does not match the process group ID of a process in the same
-session as the calling process.
-.El
-.Sh SEE ALSO
-.Xr setpgid 2 ,
-.Xr setsid 2 ,
-.Xr tcgetpgrp 3
-.Sh STANDARDS
-The
-.Nm tcsetpgprp
-function is expected to be compliant with the
-.St -p1003.1-88
-specification.